The aim of this study was to evaluated the influence of GA on contact-force parameters, FTI, FTI/wall thickness and GAP formation during ipsilateral PVI when compared to CS.

Basic objectives2

Safety,Efficacy

Basic objectives -Others

Trial characteristics_1

Exploratory

Trial characteristics_2

Explanatory

Developmental phase

Not applicable

Assessment

Primary outcomes

To evaluated the influence of GA on contact-force parameters, FTI, FTI/wall thickness and GAP formation during ipsilateral PVI when compared to CS.

Key secondary outcomes

Long-term outcome after ablation

Base

Study type

Observational

Study design

Basic design

Randomization

Randomization unit

Blinding

Control

Stratification

Dynamic allocation

Institution consideration

Blocking

Concealment

Intervention

No. of arms

Purpose of intervention

Type of intervention

Interventions/Control_1

Interventions/Control_2

Interventions/Control_3

Interventions/Control_4

Interventions/Control_5

Interventions/Control_6

Interventions/Control_7

Interventions/Control_8

Interventions/Control_9

Interventions/Control_10

Eligibility

Age-lower limit

Not applicable

Age-upper limit

Not applicable

Gender

Male and Female

Key inclusion criteria

1)symptomatic, drug-refractory AF, referred to kanazawa medical centerl between August 2014 and March 2016 for their first RF catheter ablation procedure
2)Patients who underwent anatomical ipsilateral PVI

Key exclusion criteria

We exclude patients who received catheter ablation without anatomocai CT merge